from tkinter import *
print('введите начальную координату X:')
X=int(input())
print('введите начальную коордтнату Y :')
Y= int(input())
print('введите кофициэнт увеличение N :')
N= int(input())
coords = [0,0,10,0,10,10,20,10,20,0,30,0,30,20,0,20]
if N == 0 and X<=500 and Y<=500: pass
else:
    if N>0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 20*N+Y<=500: pass
    else:
      if N<0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500: pass
      else:
           print('Рфзмер фигуры превышает максимальный размер поля')
           exit()
root = Tk()
root.title("ИТ марафон")
root.geometry("500x500")
canvas = Canvas (bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] *N+X, coords[1] *N+Y,
                      coords[2] *N+X,coords[3] *N+Y,
                      coords[4] *N+X,coords[5] *N+Y,
                      coords[6] *N+X,coords[7] *N+Y,
                      coords[8] *N+X,coords[9] *N+Y,
                      coords[10] *N+X,coords[11] *N+Y,
                      coords[12] *N+X,coords[13] *N+Y,
                      coords[14] *N+X,coords[15] *N+Y,)

root.mainloop()
